---
title: How can I choose different component sounds?
description: "The sound that is played when alpha goes above threshold (if it's a \"go\" or below threshold if it's a \"stop\") is the file \"sayalpha.wav.\"  The corresponding theta sound is \"saytheta.wav.\"  Both files are in c:\\brainm.20. There are 8 files:…"
url: "https://brainmaster.com/kb-entry/id151/"
updated: "2025-12-02"
category: "Troubleshooting / Software Troubleshooting / Archive: BrainMaster Discovery/3.0 Series Troubleshooting"
---

# How can I choose different component sounds?

The sound that is played when alpha goes above threshold (if it's a "go" or below threshold if it's a "stop") is the file "sayalpha.wav."  The corresponding theta sound is "saytheta.wav."  Both files are in c:\brainm.20.  There are 8 files:  saydelta.wav saytheta.wav sayalpha.wav saylobeta.wav saybeta.wav sayhibeta.wav saygamma.wav sayuser.wav  You can put any sound you like into these files.  Look on the 2.0 CD in the directory "contrib/Sound Files" for some to try. There are some nice water sounds there, birds, etc.  Verde is the verde river, nice river sounds. Some of the sounds are rather amusing.  Simply rename any file to "sayalpha.wav" or "saytheta.wav" and put it into the directory c:\brainm.20 it will be used by the software. We do not have an automated sound "selector" yet.  This will give you the "wave" sound which is a snippet of sound, each time you go over threshold.  I prefer to keep the thresholds high for this, or there is too much sound. Autothresholding with percents set at 80% or even 90% should work well.